Diagnose your small engine problem
Start with the symptom you can see. Each diagnostic walks through safe checks, likely causes, realistic costs, and the point where a repair shop makes more sense.
Pressure washer has no pressure
A guided diagnosis for a pressure washer that runs but does not build pressure.
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Generator starts but makes no power
A guided diagnosis for a generator that runs but does not deliver usable electrical output.
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Lawn mower starts then dies
A guided diagnosis for a mower that fires up and then stalls shortly after.
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Snowblower auger will not engage
A guided diagnosis for a snowblower that runs but the auger will not spin or throw snow.
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Chainsaw starts but chain won't move
A guided diagnosis for a chainsaw that runs but the chain stays still.
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Generator surges or hunts
A guided diagnosis for a generator that runs but repeatedly revs up and down.
Start diagnosis →Different no-start problem?
Our general no-start tool covers mowers, riding mowers, snowblowers, generators, chainsaws, and pressure washers.
Open the no-start diagnostic →